Gastrointestinal investigation of 14 adult patients with polymyositis disclosed coeliac disease in five. The inflammatory myopathy in our patients is not the same as the myopathy often seen in coeliac disease with osteomalacia. One patient has been free from both gastrointestinal and muscular symptoms for 5 years on a gluten-free diet alone. The findings strongly suggest an association between polymyositis and adult coeliac disease.
K. G. Henriksson, Claes Hallert, Klas Norrby and Anders Walan
Published in Acta Neurologica Scandinavica
Volume 65, Issue 4, pages 301–319, April 1982
Article first published online: 29 JAN 2009
Personally I have known I could not tolerate wheat for over 18 years and have been on a gluten free diet before being diagnosed with Polymyositis. I am now on a strict gluten free diet and still have both gastrointestinal and muscle symptoms, though these symptoms are much reduced.